Hierarchical wrinkling patterns

Abstract : This paper reports a simple and flexible method for generating hierarchical patterns from wrinkling instability. Complex features with gradually changing topographies are generated by using the spontaneous wrinkling of a rigid membrane (titanium) on a soft foundation (polystyrene) compressed via the diffusion of a solvent. We show that the morphology of these unreported wrinkled patterns is directly related to the rheological properties of the polymer layer and the geometry of the diffusion front. Based on these ingredients, we rationalize the mechanism for the formation of hierarchical wrinkling patterns and quantify our experimental findings with a simple scaling theory. Finally, we illustrate the relevance of our structuration method by studying the mechanosensitivity of fibroblasts.
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https://hal.archives-ouvertes.fr/hal-00516493
Contributeur : Cyprien Gay <>
Soumis le : jeudi 9 septembre 2010 - 18:01:05
Dernière modification le : lundi 27 mai 2019 - 18:24:02

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Hugues Vandeparre, Sylvain Gabriele, Fabian Brau, Cyprien Gay, Kevin Kit Parker, et al.. Hierarchical wrinkling patterns. Soft Matter, Royal Society of Chemistry, 2010, 6, pp.5751-5756. ⟨10.1039/C0SM00394H⟩. ⟨hal-00516493⟩

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